More of the new Dragorossi CAD drawings

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More of the new Dragorossi CAD drawings

Postby corran on Fri Nov 20, 2009 8:40 pm

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corran
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Re: More of the new Dragorossi CAD drawings

Postby corran on Sun Nov 22, 2009 2:13 pm

I've been asked to describe the boat:

As I said before, it's basically to fill the hole missing in our creekboat line up. We needed a Mid Sized, SHORT boat.

Mafia - 238cm, Med volume - technical creeker
Critical Mass 270cm, XXL volume - juggernaught creeker
Mad Boy 258cm, L volume - river running creeker
New Boat - 248cm - XL Volume - bouncy bang smash creeker ;-)

Those that know my creek designs know that I'm the anti christ when it comes to edges and things on the hull. Unlike playboats which are designed to work in water, with creekers you're not trying to get looseness, spinning, blunting release, nor fast up to a plane performance. You want it to turn on a dime, make major corrections with the flick of a paddle, boof everything boofable and run over or under everything not, and as much as anything, NOT react when tagging rocks on boofs, slides and rapids. Rails (edges) catch, hook and then affect the boats direction... they hang up and flip you over, they change your direction with no more than a glancing blow... I believe in a flatish hull side to side for stability, rockered from the seat up, not from mid bow and mid stern so that it spins and turns on a dime, and can climb and ride over everything from holes to rocks, a "suppository" shaped tail in width, rocker and volume so it "squirts" evenly and controlably out of drops.

Pointed cathedral bow decks - especially too far forward, make boats surface too fast and backender, and also make them pogo back into holes... I believe in a more constant increase of volume from the nose back towrds the cocpit so it doesn't explode to the surface (backender material) but rather rise with a constant forward movement in a controllable angle and speed. A overly fat nose makes the boat slow paddling through waves and also more likely to be slowed down when pencilling it - imagine the surface of the nose being half a paddle? Every time it hits a wave, or a pool, its like taking a half paddle stroke backwards - not really what you're looking for. Too pointy and its a pin potential - too fat and it slows you down... there is a happy medium.

Low at the hips - broken ribs from cockpits suck... high bow - and high behind the seat - all the volume should be in the middle of the boat, and tapered evenly with the rising rocker and sweeping outline towards the ends...

Basically, FUN shapes are for river runners. EFFECTIVE shapes are for creeks.

That's the last 30yrs of paddling experience for you put into a kayak design ;-)

Corran
corran
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Re: More of the new Dragorossi CAD drawings

Postby DanH on Sun Nov 22, 2009 7:58 pm

Sounds like what I want from a creeker!

Looking forward to having a go in one!
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Location: UK


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